1142520425 has 12 divisors (see below), whose sum is σ = 1421261340. Its totient is φ = 911089920.

The previous prime is 1142520413. The next prime is 1142520433. The reversal of 1142520425 is 5240252411.

It can be written as a sum of positive squares in 6 ways, for example, as 295943209 + 846577216 = 17203^2 + 29096^2 .

It is not a de Polignac number, because 1142520425 - 2¹⁰ = 1142519401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1142520394 and 1142520403.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65180 + ... + 80829.

It is an arithmetic number, because the mean of its divisors is an integer number (118438445).

Almost surely, 2^1142520425 is an apocalyptic number.

It is an amenable number.

1142520425 is a deficient number, since it is larger than the sum of its proper divisors (278740915).

1142520425 is a wasteful number, since it uses less digits than its factorization.

1142520425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146332 (or 146327 counting only the distinct ones).

The product of its (nonzero) digits is 3200, while the sum is 26.

The square root of 1142520425 is about 33801.1896979973. The cubic root of 1142520425 is about 1045.4132275989.

Adding to 1142520425 its reverse (5240252411), we get a palindrome (6382772836).

The spelling of 1142520425 in words is "one billion, one hundred forty-two million, five hundred twenty thousand, four hundred twenty-five".